The rest of the top five best-selling albums include Bruno Mars' "Unorthodox Jukebox" (985,000 copies sold this year after a December release), Mumford & Sons' nine-month-old "Babel" (884,000 sold in addition to 1.46 million sold by the end of last year), Blake Shelton's "Based on a True Story . . ." (703,000) and Imagine Dragons' "Night Visions" (692,000).

Macklemore and Ryan Lewis' "Thrift Shop" has broken a record for the most digital sales in the first six months of a calendar year, barely besting Gotye's 5.5 million downloads of "Somebody That I Used to Know" by this time last year.